Usage Scenario
Compared with the common mode,
the unified mode uses the modular configuration, making the configuration
clearer and configuration model easier to understand.
Considering
advantages of the unified mode, you are advised to deploy NAC in unified
mode. You can run the authentication unified-mode command to
switch the NAC mode to unified mode.
Precautions
- Starting from
V200R005C00, the default NAC mode changes from common mode to unified
mode. Therefore, if the system software of a switch is upgraded from
a version earlier than V200R005C00 to V200R005C00 or a later version,
the switch automatically runs the undo authentication unified-mode command to configure the NAC mode to common mode.
- After the common mode and unified mode are switched, the device
automatically restarts, causing service interruption.
- In V200R008C00,
some NAC commands do not differentiate the common and unified modes.
Their formats and views remain unchanged after being switched from
one mode to the other. After devices are switched from the common
mode in V200R008C00 or later versions to the unified mode in V200R009C00
or later versions, these NAC commands can be switched to the unified
mode.
- In the unified mode, only the commands of the common mode are
unavailable; in the common mode, only the commands of the unified
mode are unavailable. In addition, after the configuration mode is
switched, the commands supported by both the common mode and unified
mode still take effect.